Ar Griess Reagent
Analytical Environmental
Analytical Reagent

AR Grade Griess Reagent

Analytical Reagent grade Griess reagent manufactured for nitrite detection, nitrate analysis, and environmental testing. Our AR grade Griess reagent provides reliable colorimetric properties for research applications, water quality assessment, and precise nitrite determination in laboratory procedures.

  • Analytical Grade Purity
  • Nitrite Detection
  • Environmental Analysis
  • Water Quality Testing
  • Colorimetric Detection
  • High Sensitivity
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Technical Specifications

Reagent Type: Nitrite detection reagent
Solution A: Sulfanilic acid (0.5% w/v)
Solution B: α-Naphthylamine (0.1% w/v)
Sulfanilic Acid CAS: 121-57-3
α-Naphthylamine CAS: 134-32-7
pH (Combined): 1.2 - 2.0
Physical State: Two clear solutions
Reaction Time: 15-30 minutes
Storage Temperature: 2-8°C, protect from light
Shelf Life: 12 months refrigerated
Detection Limit: 0.1 μg/ml nitrite
Color Development: Pink to red azo dye
Wavelength Maximum: 540 nm
Packaging: 2 × 100ml amber bottles

Applications

Nitrite Detection
Water Quality Testing
Environmental Analysis
Soil Testing
Analytical Chemistry
Industrial Water Testing
Educational Laboratories
Quality Control
Research Applications
Quantitative Analysis
Pharmaceutical Testing
Spectrophotometric Analysis

Industry-Specific Grades

DRAVYOM offers specialized Griess reagent grades tailored for specific analytical requirements, ensuring optimal performance and regulatory compliance across diverse laboratory applications.

AR Grade (Analytical Reagent)
Sulfanilic Acid: 0.5% w/v α-Naphthylamine: 0.1% w/v Detection Limit: 0.1 μg/ml Application: General nitrite analysis
Environmental Grade
EPA Method Compliant Detection Limit: 0.02 μg/ml Matrix Tolerance: High Application: Environmental monitoring
Spectrophotometric Grade
High Purity: >99.5% UV-Vis Compatible Linear Range: Wide Application: Quantitative analysis
Rapid Test Grade
Reaction Time: 5-10 minutes Field Testing: Suitable Stability: Enhanced Application: Quick screening

Quality Standards

DRAVYOM's AR Grade Griess Reagent is manufactured under stringent quality control protocols, meeting international analytical standards including EPA, ISO, and pharmacopoeia specifications. Our analytical-grade production ensures consistent performance and regulatory compliance.

ISO 9001:2015 Certified Manufacturing
EPA Method Specifications
Precise Component Concentrations
Sensitivity Validation Testing
Superior Nitrite Detection
Batch-to-Batch Consistency
Traceable Certificate of Analysis
Light-Protected Logistics

Advanced Chemical Properties & Performance

AR Grade Griess Reagent exhibits exceptional nitrite detection properties essential for water analysis and food testing. Its ultra-pure sulfanilamide and N-(1-naphthyl)ethylenediamine composition ensures reliable performance in nitrite quantification, environmental monitoring, and quality control procedures requiring precise colorimetric analysis.

Reagent Components
Component A: Sulfanilamide in HCl
Component B: N-(1-naphthyl)ethylenediamine
Diazotization: Diazonium salt formation
Coupling Reaction: Azo dye formation
Physical Properties
Component A Appearance: Clear acidic solution
Component B Appearance: Clear to pale yellow solution
Final Color: Pink to deep red
pH Range: Acidic conditions (pH 1-3)
Analytical Performance
Detection Range: 0.1-100 mg/L nitrite
Sensitivity: 0.01 mg/L detection limit
Reaction Time: 15-30 minutes color development
Wavelength: 540 nm maximum absorption
Quality Specifications
Sulfanilamide Purity: ≥99%
NEDA Purity: ≥98%
HCl Concentration: 2.5 M ± 0.1 M
Blank Absorbance: ≤0.005 at 540 nm
Stability Properties
Shelf Life: 18 months (refrigerated)
Working Solution: Prepare fresh daily
Light Sensitivity: Store in dark
Color Stability: 2 hours after development

Performance Characteristics

Detailed performance metrics demonstrate AR Grade Griess Reagent superiority in nitrite detection with exceptional sensitivity, reliable colorimetric response, and reproducible results across diverse water quality and food safety analytical applications.

Detection Sensitivity

Limit: 0.01 mg/L nitrite detection

Exceptional analytical sensitivity
Color Development

Response: Linear pink to red intensity

Precise colorimetric quantification
Linearity Range

Calibration: 0.1-100 mg/L linear response

Wide dynamic analytical range
Reaction Kinetics

Development: 15-30 minutes optimal

Consistent reaction timing
Batch Consistency

Variation: ±2% between batches

Outstanding lot-to-lot reproducibility
Interference Resistance

Selectivity: Minimal matrix effects

Robust analytical performance

Safety Information

Contains hydrochloric acid and organic compounds - corrosive and potentially harmful. May cause severe burns and irritation. Use appropriate protective equipment including chemical-resistant gloves, safety goggles, and lab coats. Work in well-ventilated areas and have emergency eyewash available.

Corrosive
Eye/Skin Burns
Ventilation Required

Storage & Handling

Store components separately in original containers in a cool, dark place away from light and heat. Refrigerate both components to extend shelf life. Prepare working solutions fresh daily. Handle with extreme caution due to acidic nature and potential for staining.

Refrigerated storage (2-8°C)
Protect from light
Prepare solutions fresh daily
Handle with extreme caution

Chemical Mechanisms & Reaction Pathways

Griess reagent functions through diazotization-coupling mechanisms, enabling selective nitrite detection and quantification with predictable azo dye formation pathways for water and food analysis.

Diazotization Reaction

Sulfanilamide reacts with nitrite under acidic conditions to form diazonium salt

Critical first step requiring controlled pH conditions
Azo Coupling

Diazonium salt couples with N-(1-naphthyl)ethylenediamine to form pink azo dye

Color intensity proportional to nitrite concentration
pH-Dependent Selectivity

Optimal reaction occurs at pH 2.0-2.5 for maximum sensitivity

Prevents interference from other nitrogen compounds
Quantitative Response

Linear relationship between absorbance and nitrite concentration

Enables accurate quantitative nitrite determination

Regulatory Compliance & Documentation

Comprehensive regulatory compliance ensures global environmental and food testing laboratory access with complete documentation packages supporting international nitrite analysis standards and method validations.

EPA Methods

Environmental Protection Agency water analysis protocols

ASTM Standards

American Society for Testing and Materials water quality methods

AOAC Methods

Association of Official Analytical Chemists food analysis protocols

REACH Registration

European Union chemical regulation compliance

FDA Method Support

Validated for FDA food safety and nitrite monitoring methods

SDS Documentation

Multi-language Safety Data Sheets (16 sections, GHS compliant)

Technical Support & Value-Added Services

DRAVYOM's analytical chemistry team provides comprehensive nitrite analysis support, Griess method optimization, and environmental testing method development services for water and food analysis applications.

Nitrite Analysis Methods
  • Griess reaction optimization protocols
  • Calibration curve development
  • Interference elimination procedures
  • Sample preparation enhancement
Analytical Services
  • Reagent stability verification
  • Method precision assessment
  • Spectrophotometric validation
  • Quality control standardization
Technical Support
  • Environmental analysis consultation
  • Method development training
  • Troubleshooting guidance
  • Quality assurance protocols
Supply Solutions
  • Ready-to-use reagent kits
  • Custom concentration formulations
  • Stability-optimized packaging
  • Global environmental testing supply

Environmental Impact & Sustainability

Our Griess reagent production emphasizes environmental responsibility through sustainable organic synthesis practices, minimal waste generation, and comprehensive environmental impact management for analytical applications.

Clean Synthesis

Green chemistry principles in aromatic amine preparation

Solvent Recovery

Acid recovery programs and organic waste recycling systems

Efficient Production

Optimized reagent preparation with minimal environmental impact

Safe Disposal

Comprehensive nitrite reagent disposal and neutralization guidance

ISO 14001

Environmental management system certified production

Container Recycling

Glass container return and recycling programs

Manufacturing Excellence & Quality Control

DRAVYOM's specialized analytical reagent facility employs advanced organic chemistry technology with continuous monitoring systems to ensure consistent Griess reagent quality and nitrite detection performance across all production batches.

Reagent Preparation

Precise sulfanilamide and coupling agent preparation with controlled purity

Accurate component ratios and pH optimization
Quality Testing

17-point testing including purity, sensitivity, and color development

Spectrophotometric verification and linearity assessment
Quality Systems

ISO 9001:2015 quality management with environmental method validation

Continuous improvement and batch consistency monitoring
Packaging Control

Light-protected containers with moisture barrier closures

Stability preservation and component integrity maintenance

Market Applications & Performance Data

Comprehensive environmental laboratory data demonstrating Griess reagent effectiveness across diverse nitrite analysis applications with quantified performance metrics and method validations.

Environmental Applications
Detection Limit: 0.01 mg/L nitrite-nitrogen Linear Range: 0.01-1.0 mg/L with R² >0.999 Recovery: 95-105% in water matrix analysis
Research Institutions
Publications: 420+ cited nitrite analysis procedures Reproducibility: >99.3% inter-lab agreement Innovation: Advanced environmental monitoring protocols
Testing Labs
Reliability: 99.8% batch consistency Audit Success: 100% regulatory compliance Efficiency: 35% faster nitrite determinations

DRAVYOM Competitive Advantages

Superior Detection Performance

Consistently sensitive nitrite detection with exceptional color development and linear response for accurate environmental monitoring

Reliable Supply

Guaranteed availability with strategic inventory management and analytical-grade reagent production scheduling

Environmental Expertise

Dedicated environmental chemistry team provides nitrite analysis method development and troubleshooting support

Quality Assurance

Traceable certificates with comprehensive detection performance data and environmental method validation support

Global Standards

International compliance with EPA, ASTM, and AOAC specifications for worldwide analytical acceptance

Partnership Approach

Collaborative relationships with environmental laboratories and custom nitrite analysis method development services